Cylinder construction



J. O. HEINZE.

CYLINDER CONSTRUCTION.

APPLICATION FILED AUG-4. 1919.-

' iaaaogoas.

JOHN o. HEINZE, or 'BOYNE CITY, MICHIGAN, .assrenon TO TRACTION: ENGINE oomran' or some our, m'ronrean, orrnvnna consrnucrron'.

Specification of Letters Patent.

A CORPORATION OF MICHIGAN".

Patented Dec. 6, 11921.

Application filedAugust 4, 1919. Serial No. 315,226.

To all whomitmaiyconcem Be it known. that 1, JOHN O.- HEINZE, a citizen of the United States, residing at Boyne City, and State of Michigan, have invented certain new and useful Improvements in Cylinder Constructions," of which the following is a specification. My invention has reference more particularly to a cylinder construction in .which a detachable sleeve or lining is provided in the cylinder block, and serves as a barrel for the piston. a The principal objects of my invention are, to provide an engine or other similar device with an improved sleeve or lining construction; to provide a cylinder sleeve or lining which may be more readily removed for repairs or other purposes than any heretofore provided; to provide a detachable lining which forms the wall of the water jacket and cylinder bore; to provide a cylinder with the detachable lining which is secured thereon in such a manner as to insure a tight and rigid connection and permit same to be readily removed when desired; and in general to provide an improved cylinder construction which is economioal and easy'to manufacture, and possesses great durability to withstand the wear of the piston therein.

On the drawings, the figure is a transverse view being taken through one of the cylinders in which my improvements are em bodied.

As shown on the drawings, the reference numeral 1 indicates the crank case of the engine, which has the usual crank shaft 2 and cam shaft 3 therein, the former having one or more wrist pins 30, each of which is connected by a pitman-4 with a cylinder 5 in the usual manner.

A cylinder frame or block 6 is secured by the bolts 7 to the top of the crank case 1, and has the usual valve mechanism 8 whereby valves 9 controlled by cams 10 on the cam shaft 3 regulate the intake and exhaust from the cylinder of the engine.

In my construction, the cylinder wall is not cast integral with the cylinderblock,

but the latter is provided with an openin the county of Charlevoix opening for mounting the cylinder sleeve or wall in place, said opening being enlarged or cored out intermediate of theends as at 13 to afford a water space surrounding the cylinder barrel or sleeve when the latter is mounted in place. The cylinder sleeve or barrel is indicated at 14 and is preferably of hardened steel, for durability, and is carefully finished on its inner surface so that the piston 5 fits properly therein. The flange 11 at the top of the cylinder block is counter-bored at 15 to receive the end of the cylinder sleeve 14, and afford a shoulder or seat l6-therefor, and the flange 12 of the cylinder block is internally threaded to be engaged by the annular threads 17 on the enlarged lower end of the cylinder sleeve.

A gasket 18, preferably of soft copper with asbestos filler, or other construction which will not be disturbed by heat is placed in the seat 16 of the upper flange 11, and the reduced portion of cylinder sleeve 141 inserted up through the cylinder block until the threads 17 engage the internal threads of the flange 12, whereupon the sleeve 14 is turned, and by reason of the threaded connection, \the upper end thereof is jammed against the gasket 18, and the latter against the shoulder 16 thereby making a tight fit at the upper end of the cylinder sleeve. A tight fit is provided at the lower end of the cylinder sleeve, by the threadedconnection with the flange 12, so as to close the water chamber 13 and prevent leakage.-

. The top of the cylinder is closed by a head 19 having a water space 20 and the usual spark plug opening 21, and having a flat-, dished concavity 22 in its lower face aflording communication from the valved openings 23 to the cylinder chamber 24. This head is clamped tight onto the upper end of the cylinder block by bolts 25, with a gasket 26 interposed between the head 19 and the therefore be made of other material than that of which the cylinder block is constructed, as for example hardened steel, which is less susceptible to wear, and provides a better cylinder wall than in the constructions of engines at present employed. It will be further observed that I have provided a cylinder wall which may be readily removed or inserted in place and having a suitable construction and tight connections, so that the detachable sleeve may serve as the separating wall between the water jacket and cylinder bore.

While I have shown and described my invention ina preferred form, I am aware that various changes andmodifications may be made without departing from the principles of my invention, the scope of which is to be determined by the appended claims.

I claim as my invention:

1. In a gas en 'ne, the combination of a cylinder frame a apted to serve as the outer wall of an annular cavity containing water for cooling purposes, said frame having at one'end a head inclosing the compression end of the cylinder, a sealing seat being rovided at the inner or compression end 0 the frame, a sleeve having its inner end engaging said seat and its outer end provided with means cooperating with the outer end of the frame for sealing the lower end of the water cavity and for forcing the inner end of the sleeve into said seat, thereby sealing the upper end of the water cavity, the sleeve constituting the inner wall of the cavity, and a piston reciprocable within said sleeve, all said parts constituting a unitary structure and a crankcase onwhich said structure is detachably supported.

2. ha structure of the class described, the combination with a crank case ofan outer cylinder shell secured thereto and having an opening extending therethrough from the crank case, and a valved port therein disposed laterally from said opening, a sleeve detachably mounted in said opening and having a piston adapted to reciprocate therein, and a detachable head secured on the outer end of the cylinder shell for closing the outer end ofthe sleeve, said head being provided with a concavity in its inner face, affording communication from the valved port into the upper end of the sleeve.

3. In a structure of the class described, the combination of a unitary cylinder shell having an opening therethrough, with an inturned flange at each .end, one of which is provided with an internal seat, and the other of which is internally threaded, and a sleeve removably inserted in said opening and having one end threaded to engage the internal threads of one of the flanges for clamping the other end of the sleeve in the internal 7 seat of the other flange.

4. In a structure of the class described,

the combination of a unitary cylinder shell having an opening therethrough, with an inturned flange at one end, said flange being provided with an annular shoulder, a sleeve removably inserted in said opening and having a piston adapted to reciprocate therein, said sleeve having one end thereof engagedin the annular seat of the aforesaid flange,

and having a threaded connection'with the cylinder shell at the other end of the opening, for clamping the aforesaid end of the a seat of the flange, with an annular gasket interposed' therebetween, and threaded; means at the other end of the sleeve engaging the cylinder shell, to clamp said gasket between.

the shouldered seat of the aforesaid flange,

and the end of the cylinder engaged therein.

6. In a gas engine, the combinationof a unitary cast cylinder block or frame, constituting the outer wall of a water acket cavity, one end of said frame being provided with a sealing seat, the other end being formed with an aperture, a sleeve removabl insertible through said aperture to constitute the inner wall of the water cavity, and cooperative engaging means, respectively carried by the outer end of thesleeve and the apertured end of said'frame for forcing the inner end of the sleeve into sealing engagement with the seat, all of said parts constituting a unitary structure and a crank case on which said structure is detachably mounted.

7.'In a gas en ine, the combination of a unitary cylinder ame constituting the outer -wall of an annular cavity containing water for cooling purposes, said frame having at one end a head inclosing the compression end of the cylinder and an annular outwardly facing seat at said inner or compression end of the frame, the outerend of the frame being internally threaded, a sleeve insertible longitudinallythrough the threaded 1 piston I'GCIPI'O'.

the

ing at one end a head inclosing the compression end of the cylinder and an annular outwardly facing seat at said inner or compression end of the frame, the outer end of the frame being internally threaded, a sleeve insertihle longitudinally through the threaded end of said frame, having its outer end enlarged and threaded to screw into the threaded frame, thereby sealing the outer end of the Water cavity, and its inner end 10 sleeve and a piston reciprocable Within said '15 sleeve.

JOHN O. HEINZE. 

